Arthur J. Gallagher (AJG) Closes Buyout of Alpha Surety Posted byZacks Equity Research October 1, 2021 Leave a comment on Arthur J. Gallagher (AJG) Closes Buyout of Alpha Surety Arthur J. Gallagher (AJG) completes the buyout of Alpha Surety & Insurance Brokerage to boost its capabilities in the Surety space.